“I would ask anyone who may have walked in this area on Friday night or Saturday morning to take a look at the pictures and see if they recognise themselves.

“Even if they are not pictured I would ask that they still contact my team to see if they might have any information which will help our inquiry. “These CCTV images clearly demonstrate that the pathways through Castle Park are used regularly at night and as such there must be someone out there who holds vital information which could help us find the person or people who attacked James so brutally and left him alone to die.”

The images show people walking in the area between 11.45pm on Friday, March 28, and 4.23am on Saturday, March 29.

Contact the major investigation team on 01245 282103 between 6.30am and 8pm, call 101 outside these times, or Crimestoppers anonymously on 0800 555 111.